Correct option is A
The correct option to fill in the blank is (a) take off.
Detailed Explanation (English):
• “Take off” means to remove something that you are wearing.
• Shoes are worn on the feet, and the sentence says they are dirty, so removing them is the correct idea.
• Hence, “take off your shoes” fits perfectly.
Correct sentence: You should take off your shoes because they are dirty.
Meanings of the other options:
• (b) Put off: to postpone/delay (टालना, स्थगित करना)
• (c) Get of: incorrect/meaningless phrase (गलत प्रयोग)
• (d) Take out: to remove from inside; to extract (बाहर निकालना)